chapman



(NoMode1.)

G. T. CHAPMAN. BUGKBOARD WAGON. No. 11.52.3138.A PatentedMay 12, 1891.

UNITED STATES PATENT OFFICE.

GEORGE T. CHAPMAN, OF IVHITE PLAINS, ASSIGNOR OF ONE-HALF TO VILLIAMHARVEY MERRITT, OF NEIV YORK, N. Y. Y

BUCKBOARD-WAGON.

SFECIFICATION forming part of Letters Patent No. 452,338, dated May 12,1891. Application led November 4, 1890. Serial No. 370,270. (No model.)

T0 @ZZ whom, it may concern:

Be it known that I, GEORGE T. CHAPMAN, a citizen of the United States,and a resident of White Plains, in the county of Iestchester and Stateof New York, have invented new and useful Improvements inBuckboard-XVagons, of which the following is a specification.

My invention consists in an improved arrangement for mounting theseat ona buckboard, whereby the spring motion of the buckboard is easier, thestress is less severe on the buckboard, and a lighter and more elasticbuckboard may be used for a given load, all as hereinafter fullydescribed, reference being made to the accompanying drawings, in which-Figure l is a longitudinal sectional elevation of a buckboard-wagon inwhich the seat is mounted in accordance With my invention. Fig. 2 is aplan view of parts of the same. Fig. 3 is a detail in section on line 'yy, Fig. 2, enlarged, showing an elastic bearing of the hind end of theseat-base on the buckboard. Fig. 4 is a similar section on line xshowing a modiiied form of such bearing. Fig. 5

lis a plan view of the bearing of Fig. 4 inverted. i

I construct the seat a with long risers b for the ends, preferablyarched on the bottom and resting only at their ends on the buckboard 7c,and as near as is feasible and about equidistant from the supports ofthe buckboard on the axle c and bolster f, which distributes the load atpoints on the buckboard Where its power to sustain the load is muchgreater than if wholly sustained at the middle, as usually constructed,and enables a board of a given strength t-o sustain a greater load, andit leaves the board free at the middle t0 vibrate, so that while themotion of the seat is not quite as much it has the relief from shocksdue to the equal play of the board, and is therefore easier to the riderthan if mounted so as to have the full play of the board.

As the seat-risers are rigid and cannot spring with the buckboard, Ihinge the fore ends of said risers to the buckboard, where they restthereon at g, for allowing the requisite articulation, and at the hindends provide bearings allowing the lengthwise play of the board due toits spring motion, which bearings are also preferably of elastic natureand may be constructed in different ways.

In Fig. et I represent a roller 7L pivoted in a socket-plate 1l, set inthe riser, so that the roller projects sufficiently to rest on thebuckboard and permit contact of the riser with it, so that whateverlengthwise motion there may be of either the support or board relativelyto the other will be amply provided for by such roller. The outerportion of the roller will preferably be made of rubber or other elasticsubstance.

In Fig. 3 I represent a block of rubber j let into a recess in theriser, so as to be properly confined, by which the end of riser b mayrest directly on the buckboard. The rubber will yield in the lengthwisedirection of the seat-riser to accommodate the play in that direction.

I claim- 1. In a buckboard-wagon, the seat havingl the risers for itsends resting at their ends only, and secured at one end only on thebuckboard and about equidistant from the su pports of the buckboard onthe axle and bolster, respectively, substantially as described.

2. In a buekboard-wagon, the seat having the risers for its ends restingat their ends only, and secured at one end only on the buckboard andabout equidistant from the supports of the buckboard on the axle andbolster, respectively, the middle portion of the buckboard being free tovibrate between. the bearings of the risers on it and for longitudinalmotion relatively to one of said bearings, substantially as described.

In a buckboartbwagon, the seat having the risers for the ends arched onthe bottom and resting at their ends onlyon the buckboard and aboutequidistant from the supports of the buckboard on the axle and bolster,respectively, the middle portion of the buckboard being free to vibratebetween the bearings of the risers on it, said risers being hinged tothe huekhoard at one end and resting on hearence of two witnesses, this23d day of Oetoings at the other end, permitting lengthwise ber, 1800.motion of either the supports or the buckboard relatively to theother,substantially as 5 described. Witnesses:

GEO. T. CHAPMAN.

In testimony that I claim the foregoing as myinVentionI have signed mynaine,in pres W. J. MORGAN, WILFRED B. EARLL.

